[D8343T], Letter from Frank Julian Sprague to Thomas Alva Edison, August 7th, 1883
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Title
[D8343T], Letter from Frank Julian Sprague to Thomas Alva Edison, August 7th, 1883
Editor's Notes
letterhead of TAE central Station Consrtruction Dept In re that the double main switch be posponed b/c 1) the spare excites itself 2) The direction of the current in the armature is the sphere is always the same 3) the direction if the current in the field is always the same .Diagram drawn to show new idea. In reagrd to the breakdowm switch I have to instance a care for its use, reduce the dynamos in the sphere. Detail of techinal information regarding the process. TAE marginalia Referred to Andrews -to make drawing to scale of his switch For Shmoken so cue can have it made TAE
Author
Recipient
Mentioned
Date
1883-08-07
Type
Folder/Volume ID
D8343-F
Microfilm ID
69:34
Document ID
D8343T
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University